java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label29_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:43:38,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:43:38,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:43:38,668 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:43:38,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:43:38,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:43:38,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:43:38,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:43:38,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:43:38,677 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:43:38,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:43:38,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:43:38,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:43:38,683 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:43:38,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:43:38,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:43:38,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:43:38,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:43:38,699 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:43:38,701 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:43:38,705 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:43:38,709 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:43:38,713 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:43:38,713 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:43:38,713 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:43:38,714 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:43:38,716 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:43:38,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:43:38,720 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:43:38,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:43:38,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:43:38,724 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:43:38,724 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:43:38,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:43:38,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:43:38,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:43:38,726 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:43:38,755 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:43:38,755 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:43:38,756 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:43:38,756 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:43:38,757 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:43:38,757 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:43:38,757 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:43:38,757 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:43:38,757 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:43:38,758 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:43:38,758 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:43:38,758 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:43:38,758 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:43:38,758 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:43:38,759 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:43:38,760 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:43:38,760 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:43:38,760 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:43:38,760 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:43:38,760 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:43:38,761 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:43:38,761 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:43:38,761 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:43:38,761 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:43:38,761 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:43:38,762 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:43:38,762 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:43:38,762 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:43:38,762 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:43:38,762 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:43:38,763 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:43:38,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:43:38,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:43:38,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:43:38,839 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:43:38,839 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:43:38,840 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label29_true-unreach-call.c [2018-10-27 08:43:38,893 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/22b7d950a/7223a685cfec43f29bd7ffe3a4a82752/FLAG91b0e4966 [2018-10-27 08:43:39,630 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:43:39,631 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label29_true-unreach-call.c [2018-10-27 08:43:39,659 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/22b7d950a/7223a685cfec43f29bd7ffe3a4a82752/FLAG91b0e4966 [2018-10-27 08:43:39,675 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/22b7d950a/7223a685cfec43f29bd7ffe3a4a82752 [2018-10-27 08:43:39,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:43:39,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:43:39,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:43:39,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:43:39,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:43:39,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:39" (1/1) ... [2018-10-27 08:43:39,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:39, skipping insertion in model container [2018-10-27 08:43:39,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:39" (1/1) ... [2018-10-27 08:43:39,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:43:39,847 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:43:40,852 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:43:40,857 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:43:41,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:43:41,338 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:43:41,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41 WrapperNode [2018-10-27 08:43:41,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:43:41,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:43:41,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:43:41,341 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:43:41,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:43:41,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:43:41,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:43:41,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:43:41,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:41,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:42,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:42,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... [2018-10-27 08:43:42,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:43:42,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:43:42,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:43:42,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:43:42,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:43:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:43:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:43:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:43:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:43:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:43:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:43:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:43:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:43:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:43:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:43:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:43:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:43:50,994 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:43:50,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:43:50 BoogieIcfgContainer [2018-10-27 08:43:50,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:43:50,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:43:50,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:43:51,000 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:43:51,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:43:39" (1/3) ... [2018-10-27 08:43:51,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97028d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:43:51, skipping insertion in model container [2018-10-27 08:43:51,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:41" (2/3) ... [2018-10-27 08:43:51,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97028d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:43:51, skipping insertion in model container [2018-10-27 08:43:51,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:43:50" (3/3) ... [2018-10-27 08:43:51,004 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label29_true-unreach-call.c [2018-10-27 08:43:51,014 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:43:51,024 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:43:51,042 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:43:51,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:43:51,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:43:51,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:43:51,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:43:51,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:43:51,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:43:51,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:43:51,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:43:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 08:43:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-27 08:43:51,142 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:51,143 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:51,146 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:51,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:51,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1838383484, now seen corresponding path program 1 times [2018-10-27 08:43:51,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:51,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:51,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:51,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:51,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:51,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:51,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:43:51,686 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:51,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:43:51,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:43:51,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:43:51,738 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 08:43:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:58,838 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 08:43:58,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:43:58,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-27 08:43:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:58,878 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 08:43:58,879 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 08:43:58,890 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:43:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 08:43:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 08:43:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 08:43:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-27 08:43:59,050 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 46 [2018-10-27 08:43:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:59,050 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-27 08:43:59,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:43:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-27 08:43:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-27 08:43:59,057 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:59,058 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:59,058 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:59,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:59,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1709557070, now seen corresponding path program 1 times [2018-10-27 08:43:59,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:59,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:59,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:59,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:59,061 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:59,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:59,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:43:59,339 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:59,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:43:59,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:43:59,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:43:59,343 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 5 states. [2018-10-27 08:44:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:08,041 INFO L93 Difference]: Finished difference Result 3698 states and 6787 transitions. [2018-10-27 08:44:08,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:08,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-10-27 08:44:08,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:08,063 INFO L225 Difference]: With dead ends: 3698 [2018-10-27 08:44:08,064 INFO L226 Difference]: Without dead ends: 2230 [2018-10-27 08:44:08,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:44:08,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-10-27 08:44:08,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2209. [2018-10-27 08:44:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2018-10-27 08:44:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3833 transitions. [2018-10-27 08:44:08,135 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3833 transitions. Word has length 118 [2018-10-27 08:44:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:08,135 INFO L481 AbstractCegarLoop]: Abstraction has 2209 states and 3833 transitions. [2018-10-27 08:44:08,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:44:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3833 transitions. [2018-10-27 08:44:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-27 08:44:08,140 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:08,141 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:08,141 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:08,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:08,141 INFO L82 PathProgramCache]: Analyzing trace with hash -188742945, now seen corresponding path program 1 times [2018-10-27 08:44:08,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:08,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:08,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:08,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:08,143 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:08,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:08,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:08,432 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:08,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:08,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:08,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:08,433 INFO L87 Difference]: Start difference. First operand 2209 states and 3833 transitions. Second operand 6 states. [2018-10-27 08:44:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:16,501 INFO L93 Difference]: Finished difference Result 5866 states and 10122 transitions. [2018-10-27 08:44:16,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:16,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-10-27 08:44:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:16,534 INFO L225 Difference]: With dead ends: 5866 [2018-10-27 08:44:16,534 INFO L226 Difference]: Without dead ends: 3663 [2018-10-27 08:44:16,545 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2018-10-27 08:44:16,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3639. [2018-10-27 08:44:16,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2018-10-27 08:44:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5517 transitions. [2018-10-27 08:44:16,657 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5517 transitions. Word has length 141 [2018-10-27 08:44:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:16,658 INFO L481 AbstractCegarLoop]: Abstraction has 3639 states and 5517 transitions. [2018-10-27 08:44:16,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5517 transitions. [2018-10-27 08:44:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-27 08:44:16,665 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:16,665 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:16,665 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:16,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:16,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1463465367, now seen corresponding path program 1 times [2018-10-27 08:44:16,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:16,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:16,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:16,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:16,667 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:17,016 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:44:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:17,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:17,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:17,126 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:17,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:17,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:17,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:17,127 INFO L87 Difference]: Start difference. First operand 3639 states and 5517 transitions. Second operand 6 states. [2018-10-27 08:44:24,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:24,252 INFO L93 Difference]: Finished difference Result 8735 states and 13271 transitions. [2018-10-27 08:44:24,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:24,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-27 08:44:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:24,278 INFO L225 Difference]: With dead ends: 8735 [2018-10-27 08:44:24,279 INFO L226 Difference]: Without dead ends: 5102 [2018-10-27 08:44:24,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2018-10-27 08:44:24,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5084. [2018-10-27 08:44:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5084 states. [2018-10-27 08:44:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 6940 transitions. [2018-10-27 08:44:24,408 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 6940 transitions. Word has length 145 [2018-10-27 08:44:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:24,409 INFO L481 AbstractCegarLoop]: Abstraction has 5084 states and 6940 transitions. [2018-10-27 08:44:24,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 6940 transitions. [2018-10-27 08:44:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-27 08:44:24,413 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:24,413 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:24,414 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:24,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:24,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2101194106, now seen corresponding path program 1 times [2018-10-27 08:44:24,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:24,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:24,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:24,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:24,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:24,690 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:44:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:25,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:25,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:25,093 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:25,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:25,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:25,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:25,096 INFO L87 Difference]: Start difference. First operand 5084 states and 6940 transitions. Second operand 6 states. [2018-10-27 08:44:30,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:30,944 INFO L93 Difference]: Finished difference Result 13307 states and 18750 transitions. [2018-10-27 08:44:30,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:30,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-10-27 08:44:30,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:30,982 INFO L225 Difference]: With dead ends: 13307 [2018-10-27 08:44:30,982 INFO L226 Difference]: Without dead ends: 8229 [2018-10-27 08:44:30,998 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:31,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2018-10-27 08:44:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 8128. [2018-10-27 08:44:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2018-10-27 08:44:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 10817 transitions. [2018-10-27 08:44:31,209 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 10817 transitions. Word has length 176 [2018-10-27 08:44:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:31,210 INFO L481 AbstractCegarLoop]: Abstraction has 8128 states and 10817 transitions. [2018-10-27 08:44:31,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 10817 transitions. [2018-10-27 08:44:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-27 08:44:31,218 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:31,218 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:31,218 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:31,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:31,219 INFO L82 PathProgramCache]: Analyzing trace with hash 241142769, now seen corresponding path program 1 times [2018-10-27 08:44:31,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:31,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:31,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:31,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:31,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 78 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:44:31,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:44:31,623 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:44:31,625 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-27 08:44:31,627 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1891], [1893], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:44:31,688 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:44:31,688 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:44:32,188 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:44:32,193 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:44:32,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:32,238 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:44:32,830 INFO L227 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 77.95% of their original sizes. [2018-10-27 08:44:32,831 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:44:32,942 INFO L415 sIntCurrentIteration]: We unified 208 AI predicates to 208 [2018-10-27 08:44:32,943 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:44:32,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:44:32,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:44:32,948 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:32,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:32,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:32,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:32,949 INFO L87 Difference]: Start difference. First operand 8128 states and 10817 transitions. Second operand 6 states. [2018-10-27 08:46:31,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:46:31,924 INFO L93 Difference]: Finished difference Result 16955 states and 22499 transitions. [2018-10-27 08:46:31,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:46:31,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 209 [2018-10-27 08:46:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:46:31,959 INFO L225 Difference]: With dead ends: 16955 [2018-10-27 08:46:31,960 INFO L226 Difference]: Without dead ends: 8833 [2018-10-27 08:46:31,979 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:46:31,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2018-10-27 08:46:32,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8831. [2018-10-27 08:46:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8831 states. [2018-10-27 08:46:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8831 states to 8831 states and 11532 transitions. [2018-10-27 08:46:32,170 INFO L78 Accepts]: Start accepts. Automaton has 8831 states and 11532 transitions. Word has length 209 [2018-10-27 08:46:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:46:32,171 INFO L481 AbstractCegarLoop]: Abstraction has 8831 states and 11532 transitions. [2018-10-27 08:46:32,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:46:32,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8831 states and 11532 transitions. [2018-10-27 08:46:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-10-27 08:46:32,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:46:32,183 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:46:32,183 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:46:32,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:46:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash 780174894, now seen corresponding path program 1 times [2018-10-27 08:46:32,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:46:32,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:46:32,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:46:32,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:46:32,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:46:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:46:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 176 proven. 171 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:46:32,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:46:32,874 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:46:32,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 397 with the following transitions: [2018-10-27 08:46:32,875 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1891], [1893], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:46:32,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:46:32,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:46:33,149 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:46:33,149 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:46:33,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:46:33,176 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:46:33,628 INFO L227 lantSequenceWeakener]: Weakened 393 states. On average, predicates are now at 77.68% of their original sizes. [2018-10-27 08:46:33,628 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:46:33,998 INFO L415 sIntCurrentIteration]: We unified 395 AI predicates to 395 [2018-10-27 08:46:33,998 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:46:33,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:46:33,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-10-27 08:46:33,999 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:46:34,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:46:34,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:46:34,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:46:34,001 INFO L87 Difference]: Start difference. First operand 8831 states and 11532 transitions. Second operand 10 states. Received shutdown request... [2018-10-27 08:47:37,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 08:47:37,259 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:47:37,265 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:47:37,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:47:37 BoogieIcfgContainer [2018-10-27 08:47:37,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:47:37,266 INFO L168 Benchmark]: Toolchain (without parser) took 237578.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.2 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,268 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:47:37,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1650.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 494.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,270 INFO L168 Benchmark]: Boogie Preprocessor took 215.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,271 INFO L168 Benchmark]: RCFGBuilder took 8944.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.5 MB). Peak memory consumption was 512.5 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,272 INFO L168 Benchmark]: TraceAbstraction took 226268.25 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -461.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:37,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1650.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 494.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -974.4 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 215.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8944.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 512.5 MB). Peak memory consumption was 512.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226268.25 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -461.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (8831states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (14027 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 226.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 219.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1798 SDtfs, 17336 SDslu, 1256 SDs, 0 SdLazy, 28124 SolverSat, 6070 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 172.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 657 GetRequests, 601 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8831occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9974057499690206 AbsIntWeakeningRatio, 0.09618573797678276 AbsIntAvgWeakeningVarsNumRemoved, 16.383084577114428 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 166 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1231 NumberOfCodeBlocks, 1231 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1224 ConstructedInterpolants, 0 QuantifiedInterpolants, 1820263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 420/658 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown